Crusher



May 1, 1934.

H. H. RUMPEL 1,957,228

CRUSHER Filed April 27, 1929 2 Sheets-Sheet 1 IN V EN TOR.

TTORNEYS.

May 1, 1934. RUMPEL 1,957,228

CRUSHER Filed April 27, 1929 2 Sheets-Sheet 2 A TTORNEYS.

Patented May 1, 1934 Harvey H. lhumpel, Milwaukee, Wis, assignor to Smith Engineering Works, Milwaukee, Wis, a corporation of Wisconsin Application April 27, 1929, Serial No.

8 Claims.

invention relates to improvements in crushers of the form wherein an eccentric rolling motion is imparted to the crushing head.

One of the objects of the present invention is to provide a crusher in which the crusher head has a rolling eccentric motion and the coacting relatively fixed crushing member or concave is arranged to yield under pressure.

A further object of the invention is to provide a crusher in which the crusher head is mounted on a crank shaft of angular formation to impart an eccentric rolling motion to the head and the is supported in a plurality of bearings arranged to take both radial and endwise crushing pressures.

A further object of the invention is to provide a crusher in which the concave or outer crushing member is connected to and supported by a ring member which in turn is adjustably connected to the part forming the upper yielding portion of the housing.

A further object of the invention is to provide a crusher in which the upper housing part is yieldingly connected to the main housing or frame part by a curved annular flange and recess joint to permit a free sliding motion at a point opposite to the point of lift of the concave or outer crushing member.

A further object of the invention is to provide a crusher having a concave ring connected to the housing by belts in a manner to eliminate crushing strain on the bolts.

A further object of the invention is to provide a threaded means for vertically adjusting the spacing of the concave crushing member from the crusher head and maintaining said member in position.

A further object of the invention is to provide a crusher in which the threaded means is guarded against the entrance of dust while permitting movement of the parts.

A further object of the invention is to provide a crusher having a novel means for actuating the threaded member controlling the vertical adjustment of the concave member.

A further object of the invention is to provide a crusher having the upper portion of the main frame finished and engaged by a strip of flexible material held by a ring which is attached to the concave ring, to permit adjustment of or tilting of the concave member while preventing entrance of dust between the bearing parts.

A further object of the invention is to provide a crusher in which the axial line of the crusher head intersects the axial line of the main portion of the crusher shaft above the crusher head.

A further object of the invention is to provide a crusher in which the cranked portion of the crusher shaft is counterbalanced to prevent vibration.

A further object of the invention is to provide a crusher in which the lower portion of the head yieldingly carries a member having a lower convexed surface formed on an arc whose radius coincides with the intersection lines of the shaft portions, and said convexed portion bearing against a rigid curved surface forming part of the frame enclosing the bearings of the crusher to keep dust therefrom.

A further object of the invention is to provide a crusher having a mantle of wear resisting material and a sheet metal apron depending therefrom to deflect material from the convexed and concave bearing surfaces of the head and the main frame and thus eliminate wear.

A further object of the invention is to provide a crusher in which the bearings of the head and the main portions of the crusher shaft are lubricated by forcing oil upwardly through a tubular portion of the shaft and then flows downwardly and over the bearings.

A further object of the invention is to provide a crusher which is of simple construction, is strong and durable and is well adapted for the purposes described.

With the above and other objects in view, the invention consists of the improved crusher and its parts and combinations as set forth in the claims, and all equivalents thereof.

In the accompanying drawings in which the vsame reference characters indicate the same parts in all of the views;

Fig. 1 is a vertical sectional view of the improved crusher;

Fig. 2 is a top View thereof;

Fig. 3 is a top detail sectional view taken on line 33 of Fig. 1 of a portion of the crusher; and

Fig. i is a sectional detail view taken on line i i of Fi 1.

Referring to the drawings the numeral 5 indicates a frame or casing which is of cylindrical form and is provided with an upper and outwardly extending rounded flange 6. The casing is also formed with an inner bearing or hub portion 7 connected to the outer portion by radial ribs 8. A vertical crusher shaft 9 extends through the hub portion '7 and is journaled in upper and lower conical roller bearings 10 and 11 mounted within the hub portion. Said bearings are of the end thrust and lateral type. The upper bearing 10 is mounted in a recessed portion 12 formed in the hub portion '7, while the lower bearing 11 is mounted within a removable and shouldered hub extension portion 13 connected to the lower end of the hub portion 7 by bolts 14.

The shaft 19 is formed with an oil bore 15 which extends lengthwise through the shaft and at its lower end the bore is tapered, as indicated by the numeral 15' to receive the upper tapered end portion 16 of a yielding tubular fitting l7. Said fitting is slidably mounted in a cap member 18 bolted to the lower end of the hub extension 13 and is held yieldingly in engagement with the shaft end by a coiled spring 19. The cap member has a threaded bore for connection with an oil pipe 20 leading to an oil pump 21. The yielding fitting maintains an oil tight joint with the shaft.

A bevel gear 22 is keyed on the shaft 9 immediately above the lower bearing and is in mesh with a bevel gear 23 mounted on the inner end of a horizontal driving shaft 24. Said driving shaft is journaled in roller bearings 25 mounted within a removable extension 5" of the frame. The outer end of the horizontal shaft projects out of the extension and at its outer end carries a belt wheel 26 for connection with a source of motion (not shown).

The pump is driven by a bevel gear connection 21' with the shaft 24 and the pump is piped to an oil tank 27. An oil return pipe 20 is connected to the cap member 18 and to the oil tank 27 to return the oil from the crusher to the tank.

The upper end portion of the crusher shaft is of cranked formation as indicated by the numeral 9 with the cranked portion extending upwardly inwardly at an oblique angle towards the of the main portion of the shaft, so that the axial. line of the obliquely cranked portion intersects the axial line of the main shaft portion at a point above the crushing head 28 of the machine. The head 28 is formed of two parts and the lower part 28 is connected to the upper part by an annular tapered rabbet joint and by screws 29 to permit easy removal and access to parts below. Said lower head part 28' is shouldered to receive roller bearings 30 which are interposed between the cranked portion of the shaft and the head. The upper roller bearing 30 is held in position on one of the annular shoulders 31 of the shaft by a plate 32 bolted to the upper end of the shaft 9 and extending over a portion of the bearing. while the lower bearing 30 is maintained in position by the upper bearing and one of the shoulders 31 formed on the cranked portion of the shaft. The roller bearings 30 are also of the lateral and end thrust type. The lower portion of the lower head part 28 is formed with an annular groove 33 to yieldingly receive the upper portion of a collar member 34 having a lower convexed face formed on a radius coincident with the axial lines of intersection of the shaft portions, so that its engagement with the upper concave bearing face 35 of the hub portion '7 will form a dust proof sliding connection therewith. Coiled springs 35 interposed between the collar 3-: and the head part 28' yieldingly and slida-bly hold the collar against the bearing face 35 of the hub portion. Screws 36 threaded into the head part 28' entering openings in the collar hold the collar in position. A key lug 36" also prevents rotation of the collar. The head 28 is formed with an upwardly extendspect to the upper frame.

ing cylindrical extension 36 i ended at upper end. A. conical mantle 37 of wear resisting material and having an upper tubular extension 38 fits over the head and its extension and is clamped thereto by a nut 39 which is threaded on the head extension and bears against the tubular extension of the mantle. The head is provided with projecting lugs 40 and the mantle is firmly anchored to the head by means of zinc 41 which is poured, while in a molted condition, into the space between. the mantle and the head and around the projecting lugs. A cup guard 42 extending over a portion of the nut 39 and secured to the extension. by a screw 43 is adapted to protect the nut against wear. A disk 44 covers the screw 43. In use the cup fills with material and takes the wear of other material falling thereon.

The lower edge of the mantle terminates adjacent the periphery of the head and said head portion is provided with 9. depending annular apron 45 formed of plate metal which deflects the material away from the collar 36 and the hearing surfaces thereof and permits the material to freely fall through the discharge opening 5'.

An upper housin or frame 46 formed with an annular rounded flan e l? which extends over and engages the upper rounde flange 6 of main frame. Bolts 48 extending downwardly through both flanges .7 and 5, and also through a floating ring 49 which surrounds the main frame 5, are provided with nuts 50 at their lower ends. Coiled springs 51 surrounding the bolts and interposed between the flange 6 and the floating ring 49 yieldingly hold the upper housing 46 in position on the lower frame part. in spaced relation are also interposed between the flange 6 and the floating collar 49 to yieldingly hold the upper frame member in position on the lower frame, and to prevent the upper frame part from turning horizontally on the lower frame tapered pins 48 are provided which are secured to the upper frame flange 47 and loosely enter registering openings in the lower flange The upper frame 46 provided with an internal thread 52 to receive the externally threaded segmental members 53 which are adjustably carried by the concave frame member 54 to adjust the height of the concave frame member with re- The concave member 54 is tapered inwardly, upwardly as in dicated by the numeral 55 to fit the corresponding inner wedge faces 56 of the segmental. members 3 which are interposed between the upper frame member 46 and the concave frame member 54 to adjust the concave frame member vertically. Said concave frame member is also formed with an upper outwardly extending flange 5'? which overlaps the segmental members 53 and has bolts 58 which are threaded through the flange 5'7 and impinge against the upper surfaces of the segmental members to cause a wedging engagement between the segmental members and the concave frame member 54 and the upper frame member is when the parts are in adjusted position. To prevent independent circumferential movement with j relation to the concave frame members 54. the segmental members are f .ed with upstanding lugs 59 which extend into recesses 60 of the con cave member flange 57.

Springs 51 A flanged gear 61 is mounted on the flange 57 v The l annular flange 61 of the gear 61 overlaps the upper end of the upper frame member 46 and forms a close slidable connection therewith to prevent the entrance of dust or other foreign matter into the adjustable parts. A pinion 6 journaled on a stud shaft is in mesh with the gear 61 and is formed with an upper serrated face 64' for receiving a socket wrench 65 having a similarly shaped lower face to turn the pinion and the gear to adjust t re height of the concave frame member 46.

An outer or concave grinding member 66 surrounds the grinding head and is secured to the concave frame member 5% by bolts and nuts 6'? which pass through radial lugs 68 formed on the concave 66, to permit replacement when worn. The lugs 68 extend into recesses 69 formed in the concave frame member 54. The upper faces of the lugs 68 and the lower faces of the recesses 69 are spaced apart and the spaces therebetween are filled with pieces of wood 70 or other easily compressible material as wood, to permit drawing the bolts 67 tight in the event that the zinc packing '71, interposed between the concave and the concave holding member, should give away.

The lower portion of the concave frame memher is provided with an annular apron '72 which bears against a yielding ring packing 73 mounted on the inner wall of the casing 5 to slidingly seal the connection therebetween, and the inner face of the apron 72 is provided with a lining of rubber '74. to take the wear.

The upper inner portion of the gear 61 is provided with an upstanding collar 75 which moves therewith.

Spaces between the working parts are filled with packing as desired to protect said parts.

In operation, the material to be crushed is fed into the machine tln'ough the collar and is cru hed between the head and the concave, Due to the obliquely extending eccentric portion of the crusher shaft which carries the crusher head, the rotation of the crusher shaft will cause the crusher to turn in a path eccentric to the concave, so that portions of the head in moving closer to the concave will crush the material therebetween, and the head will be rotated by engagement with the material. If the crushing space between the two crushing members is overloaded with material, or lumps of material too hard to be crushed get into the same space, the increased pressure will overcome the tension of the concave frame member springs and permit the concave member to tilt upwardly and enlarge the space, and the material will then drop freely from between the crushing members, and the springs will then return the concave member to its normal crushing position as shown.

From the foregoing description it will be seen that the crusher of very simple construction, and is well adapted for the purpose described.

What I claim as my invention is:

l. A crusher, comprising a lower frame, a vertical shaft journaled therein and having an upper obliquely extending eccentric portion, spaced bearings for the vertical portion of the shaft, means for rotating the shaft, an upper housing yieldingly resting upon the lower frame, a crusher heat. journaled on the eccentric portion of the vertical shaft, a concave crusher member extending in eccentric relation around the crusher head and having an outer upwardly and inwardly tapered wall, segmental members having a thread.- ed engagement with the upper housing and a wedge engagement with the tapered wall, means carried by the concave crusher member for forcing the segmental members wedgingly between the upper frame member and the concave crusher member, and means for turning the concave crusher member in the upper frame member to adjust the concave crusher towards or away from the crusher head.

2. A crusher, comprising a lower stationary frame having a central upwardly extending bearing part, a vertical shaft journaled in said bearing part and having an upper obliquely extending eccentric portion, spaced bearings within said bearing part for the vertical portion of the shaft, means for rotating the shaft, an upper housing yieldingly resting upon the lower frame, a conical crusher head journaled on the eccentric portion of the vertical shaft, a concave crushing member extending eccentric relation around the crusher head and having an outer upwardly and inwardly tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, a screw means carried by the upper portion of the crusher for forcing the segmental members wedgingly between the upper frame member and the concave crusher member, and means for turning the concave member in the upper frame member to adjust the same towards or away from the crusher head.

3. A crusher, comprising a lower stationary frame having a central upwardly extending bearing part, a vertical shaft journaled in said bearing part and having an upper obliquely extending eccentric portion, spaced bearings within said bearing part for the vertical portion of the shaft, means for rcating the shaft, an upper housing yieldingly resting upon the lower frame, a conical crusher head journaled on the eccentric portion of the vertical shaft, a collar yieldingly moving with the lower portion of the crusher head and having a lower curved surface which bears against the upper edge portion of the central frame bearing part, a concave crushing member extending in eccentric relation around the crusher head and having an outer upwardly and inwardly tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, a screw means carried by the upper portion of the crusher for forcing the segmental members wedgingly between the upper frame member and i he concave crusher member, and means for turning the concave member in the upper frame member to adjust the same towards or away from the crusher head.

4. A crusher, comprising a lower stationary frame having a central upwardly extending bearing part, a vertical shaft journaled in said bearing part and having an upper obliquely extending eccentric portion, spaced bearings wi'hin said bearing part for the vertical portion of the shaft, means for rotating the shaft, an upper housing yieldingly resting upon the lower frame, a conical crusher head journaled on the eccentric portion of the vertical shaft, a collar yieldingly carried h by the lower portion of the crusher head and having a lower curved surface which bears against the upper edge portion of the central frame bearing part, an apron depending from the crusher head and surrounding the collar, a concave crushing member extending in eccentric relation around the crusher head and having an outer upwardly and inwardly tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, a screw means carried by the upper portion of the crusher for forcing the segmental members wedgingly between the upper frame member and the concave crusher member, a gear and pinion means carried by the upper portion of the crusher, an apron secured to and depending from the concave member and having a slidable engagement with the stationary frame, and means for rotating the pinion to adjust the concave crusher member vertically.

5. A crusher, comprising a lower stationary frame having a central upwardly extending bearing part, a vertical shaft journaled in said bearing part and having an upper obliquely extending eccentric portion, spaced bearings Within said bearing part for the vertical portion of the shaft, said shaft having a vertically extending bore, a tube yieldingly engaging the lower end of the bore, means actuated by a portion of the crusher for circulating a lubricant upwardly through the bore, means for rotating the shaft, an upper housing yieldingly resting upon the lower frame, a conical crusher head journaled on the eccentric portion of the vertical shaft, a concave crushing member extending in eccentric relation around the crusher head and having an outer upwardly and inwarchy tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, a screw means carried by the upper portion of the crusher for forcing the segmental members wedgingly between the upper frame member and the concave crusher member, a gear and pinion means carried by the upper portion of the crusher, and means for rotating the pinion to adjust the concave crusher member vertically.

6. A crusher, comprising a lower frame of circular form and having an upper outwardly curved flange and an inner upwardly extending bearing part provided with vertically spaced side and end thrust bearings, a vertical shaft journaled in the bearings and having an upper obliquely extending eccentric portion, means for rotating the shaft, an upper housing of circular form and having an inner threaded portion and an outwardly curved flange which tiltingly rests upon the flange of the lower frame, bolts extending through the flanges of the housing and the frame, a floating ring member surrounding the lower frame and to which the bolts are connected, coiled springs interposed between the floating ring and one of the flanges and surrounding some of the bolts for holding the housing yieldingly tiltably in position, a crusher head journaled on the eccentric portion of the vertical shaft and having an upwardly projecting extension, a concave crusher member extending in eccentric relation around the crusher head and having an outer tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, means for forcing the segmental members wedgingly between the upper frame member and the concave crusher member, means for turning the segmental members to adjust the concave crusher member vertically, and a collar having a lower curved surface which engages the upper edge portion of the lower frame inner bearing part.

'7. A crusher, comprising a lower frame of circular form and having an upper outwardly curved flange and an inner upwardly extending bearing part provided with vertically spaced side and end thrust bearings, a vertical shaft journaled in the bearings and having an upper obliquely extending eccentric portion, means for rotating the shaft, an upper housing of circular form. and having an inner threaded portion and an outward y curved flange which tiltingly rests upon the flange of the lower frame, bolts extending through the flanges of the housing and the frame, a floating ring member surrounding the lower frame and to which the bolts are connected, coiled springs interposed between the floating ring and one of the flanges and surrounding some of the bolts for holding the housing yieldingly tiltably in position, a crusher head journaled on the eccentric portion of the vertical shaft and having an upwardly projecting extension, a concave crusher member extending in eccentric relation around the crusher head and having an outer tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagem nt with the tapered wall, means for forcing the segmental members wedgingly between the upper frame memb r and the concave crusher member, means for turning the segmental members to adjust the concave crusher member vertically, a collar having a lower curved surface which engages upper edge portion of the lower frame inner bearing part, and depending circular aprons extending adjacent some of the moving parts of the crusher members.

8. A crusher, comprising a lower frame of circular form and having an upper outwardly curved flange and an inner upwardly extending bearing part provided with vertically spaced side and end thrust bearings, a vertical shaft journaled in the bearings and havin an upper obliquely extending eccentric portion, means for rotating the shaft, an upper housing of circular form having an inner threaded portion and an outwardly curved flange which tiltingly rests upon the flange of the lower frame, bolts extending through the flanges of the housing and the frame, a floating ring member surrounding the lower frame and to which the bolts are connected, coiled springs intel-posed between the floating ring and one of the flanges and surrounding some of the bolts for holding the housing yieldingly tiltably in position, a crusher head journaled on the eccentric portion or" the vertical shaft and having an upwardly projecting extension, a counterweight mounted on the vertical shaft below the crusherhead to counterbalance the crusher head and the eccentric portion of the shaft, a concave crusher member extending in eccentric relation around the crusher head and having outer tapered wall, segmental members having a threaded engagement with the upper housing and a wedge engagement with the tapered wall, means for forcing the segmental members wedgingly between the upper frame member and the concave crushor member, for turning the segmental members to adjust th concave crusher member vertically, a collar havin a lower curved surface which engages the upper edge portion of the lower frame inner bearing part, and depending circular aprons extending adjacent some of the moving parts of the crusher members.

HARVEY H. RUMPEL. 

